Apparatus for purifying gases.



A. MULLBR & c. BOMHARL. APPARATUS FOR PUBIFYINGG'ASES APPLIGATIOH FILED DEG. 2, 1909.

Famine-2i gag. 11%, 1914;

A. MULLDR& c. BOMHARD.

APPARATUS FOR PURIFYING GASES.

AYPLI-QATIM FILED 9110.2, mos,

Patented Aug: 18, 1914.

Z SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ARNO Mi'ILLEn, or LEIPZIG-SCHLEUSSIG, AND CHARLEY BoMHaiw, or BERLIN, GERMANY.

APPARATUS FOR PURIFYING GASES.

Specification of Letters Iatent.

Patented Aug. 18, 1914.

Application filed December 2, 1909. Serial No. 531,049.

Gases, of which the following is a specification.

The invention relates to apparatus for separating the solid constituents carried along by waste gases or" all kinds, and re cuperating them for further use if desired.

This invention is characterized broadly by the fact that before the waste gases enter the chimney they are conducted through a purifying apparatus, in the first member of which the gas current is given a rotary movement and the solid particles of soot or other impurities contained therein are thrown against the walls of the condenser by centrifugal action. Simultaneously these solid particles are moistened and caused to adhere to one another by means of sultably arranged spraying nozzles and the greater part of these solid particles together with the liquid is conducted from the spraying or moistcning chamber into collecting chambers. In the second men'ibcr of the condenser the current of gas is conducted through a system of open channels whereby any line particles of water and solid partieles which may have been carried along from the spraying chamber are drawn into the chambers formed by the channels all of which c mmunicate with a large collector chamber, while the gases pass to the chimney.

An apparatus constructed in accordance with the invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical longitudinal section taken on the line 11 of Fig. 2. Fig. 2 is a horizontal section of the apparatus on line 2-2 of Fig. 1. Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2. Fig. 4 is a transverse vertical section takenon the line 4-4 of Fig. 5. Fig. 5 is a horizontal section on line 5 5 of Fig. at.

As shown in Fig. 1, the condenser consists broadly of a spraying or moistening chamber A, a drying chamber B and the chem bers C, C serving as collectors for the moistened impurities separated from the gas. The said principal members of the condenser may be modified constructionally in various ways according to the nature of 60. 3

the gases to be purified without departing from the principle of the invention.

Owing to the draft in the chimney S or in some cases by the action of fans or blow I ers, the waste gases are drawn through the flue Z to the bottom of the spraying chamher A, as indicated by arrows in Fig. 2. The flue ascends ,helically through the spraying chamber A, the number of the convolutions of the helical portion of the flue I0..-

correspondingto the volume of waste gas to be dealt with. The object of these convolutions is to impart a rotary movement to the current of gas, and they communicate through the slots 6 with the collection chambers C arranged parallel to .the axis of the line and at the periphery of'the convolutions thereof. The gas rising through the convolutions will be given a spiral or rotary movement and the heavy impurities will be 80.

thrown outward by centrifugal action so as to pass through the slots e into the collection chambers C, after which. they gravitate to the lowermost chamber and accumulate therein until removed by any convenient or $5 preferred means. The slots 6 extend transversely to the spiral path of the gases through the washing chamber A and prefer ably parallel to the-axis of said spiral path or flue. Any gas that may pass through the i slots 12 will rise in the collection chambers and return through the short pipes or now zles .s', the delivery ends of which extend in the direction of movement of the spiral current of gas, thus causing a suction therein, 96

to again mingle with the main current of gas. I chamber A may include a lower spiral plant? 2- and a plurality of horizontal partitionslal.

having openings 2 with inclined plates "z l lgp arranged between them (see Fig. 4) for imparting the desired rotary movement to the "as.

6 Within the ascending portion of the flue are arranged nozzles d which are adapted to ,spray a prepared liquid which is preliminarily heated to the temperature most suit-. able for combining the liquid with the partides in the soot. The liquid maybe under I a variable, pressure and the arrangement of .310

As illustrated, the helical flue Z in the;

the other, through and about which the cur- :{xyt of gas must pass, the said channels leadg into a collecting chamber C at the side of the chamber B. The liquid and solid particles are caught by these channels and,

owing to the inclined dispositiomthereof are directed into the collecting chamber where by all liquid and any solid particles still present are drawn 0 Any gas that may pass into the chamber C will rise therein and return to the chamber B via the short pipes 8 having conical discharge end portions facing the channels 1, whereby the ing of the gases through said chamber B will cause an induced current or suction through said pipes serving to accelerate the return of the gas from said chamber C.

The operation is as follows:-The gases entering the condenser at b are given a cen-- 'trifugal force by their passage through the 39 helical flue Z of the condenser and this is powerfully assisted by the action of the spraying nozzles d which discharge in the direction of the movement'of the gases so that all the solid particles are thrown toward the collection chamber 0-. Attire same time by means of the prepared spray from the nozzles {23 the solid particles in the gas are moistened and caused to adhere together to form a mud-like mass. Owing to the ar- 40 rangement and construction of the purifier,

the extensive adhesion surf'ape which is absolutely necessary is formed' and the products separated from the gases strike against this surface. After the current ofgas has passed 5 through the spraying chamber, it enters the drying chamber B while still in a moist condition; in this drying chamber, the current of gas by flowing past and around the open channels r yields up to them the moisture 5 still adhering and any fine particles which it may still contain; thence the condensate (lows into the large chamber C so that when it leaves the channels 1* the current of gas passes to the chimney S in a thoroughly purified condition.

What we do claim as our invention, and desire to secure by Letters Patent of the United States, is

1. In apparatus'for purifying waste gases,

so the combination with a moisteningchamber,

of means therein fora causing a current of gas to travel an upward spinal path in passin through said chamber, an upwardly extending collection chamber at the side of as said moistening chamber and communicating therewith through a slot extending transversely to the path of the gas, and a pipe connecting the upper portion of said collection chamber with said moistening,

chamber for returning gas which may enter the collection chamber through said slot.

2. In apparatus for purifying waste gases, the combination with a moistening chamber, of means therein for causing a current of gas to travel in a helically ascending path in passing through said chamber, an upwardly extending collection chamber at the side of said moistening chamber and communicating therewith through a slot extending transversely to the path of the gas, and a pipe connecting the upper portion of said collection chamber with said moistening chamber for returning as whichmay enter the collection chamber t irough said slot, the delivery end of said pipe being so arranged with relation to the direction of movement of the helicallyascending current of gas as to cause the latter to creator a suction in said pipe.

3. In apparatus for purifying waste gases,

the combination with a moistening chamber of means therein for causing a current of gas to travel in a helically ascending path in passing through said chamber, means for supplying a moistenin liquid to said chamber and a collection chamber at the side of said moistening chamber and communicating therewith through a restricted opening extending transversely to the path of the gas together with means at the upper portion of said chamber for returning gas which may eiiter the collection chamber through said s 0t.

i. In apparatus for purifying waste gases, the combination with a moistening chamber of means therein for causing a current of gas to travel in a helically ascending path in passing through said chamber, a collection chamber at the side of said moistening chamber and communicating therewith through a restricted opening extending transversely to the path of the gas, a spray ing nozzle arranged to deliver its spray for assisting the helical movementof the gas and a drying chamber having its upper portion connected to the delivery end of said moistening chamber and provided with an outlet below said connection.

5. In apparatus for purifying waste gases, the ombination with a moistening chamber of means therein for causing a current of gas to travel upwardly in a spiral path in passing through said chamber, a collection chamber beside said moistening chamber and communicating therewith through a slot extending transversely to the path of the gas, and means at the upper portion of said collection chamber for returning gas which may enter the collection chamber through said slot.

of means therein for imparting :1 rotary movement to a current of gas passing: through said ehzunber, :1 spraying nozzle mleipteil to deliver its 5pm to aceeierute Sillli rotary movement, and :1 drying rimmlwr having its upper portion 12011110 fled with the delivery end of said moisiening chain her and provided with an outlet below said connection.

7. In apparatus for purifying gaws, the combination With a helically ascending flue of :1 plurality of spraying nozzlee arranged in (iillkik'lll roi'ivolutions of sziirhl'lurn ali of said nozzles being arranged to llillY T the spray for accelerating tl r 111m gaseu through said flue- Hlltl :1 21 in her having its upper portion minim-red to rimmtize delivery and of said nioisozning chamber and provided with an outlet below said muneeuon.

in appantus for purifying gasee, the eombinntion with u tine, of :1 Plfllnlll) of waste giise the rombinaiion with :1 inoismning eluun our,

(ix-11511;: the amiwenien't of Hue i rollertinn rlmin 1 101111 with s.- d flue ilnimigh 2i slot extending iruns- :1?!) versel lo the mill of the gas. and 111mm: ll the upper portion of said c i lleehun -;iuuni.-er fo returning g' whi rh may enter the moilreijion chamber through said slot.

In tesfimon whereof I have hereunto set i my hand in presence of two subisuribing Wit neases.

A RNO M URL El? 1 llfilrsb'iii',

R1 non-'11 Fin'muc, 1' 21111111111 i. lilimuzn, ln :1. im-"ny n'iierwi' l haw livers 1 my hnno in pre eenre of two 1:1!3 51115511 15 CH ARLEY BUM iii? fill l. iIIHr-J' VJULDXMAH I'IMPT, lim ny UAsPLR. 

